After her mother was fatally shot outside Dallas' Medieval Times, a college student made a frantic call to 911.

"They just shot my mom," Vivian Teran screamed into the phone. "I can't believe this over a phone."

Martha Teran

Jurors on Wednesday, the first day of a capital murder trial, heard the 911 call from the woman who had just witnessed her mother's shooting.

Lonzell Hunter, 24, is charged with capital murder in the October 2016 fatal shooting of Martha Teran. The shooting happened in front of her adult children, including Vivian Teran.

Lonzell Hunter

Hunter is also charged with capital murder in the September 2016 slaying of a 50-year-old convenience store clerk.

He is only on trial for the slaying of 42-year-old Martha Teran.

Vivian Teran stared at the ceiling at times while testifying about the night her mother was killed. She often shook her head to keep from crying.

The college student had been buying and reselling iPhones to make money for an upcoming vacation.

Vivian said she always chose to meet buyers at public places to stay safe. In October 2016, she agreed to meet the buyers, including Hunter, at Medieval Times off Interstate 35E after arranging the sale of the iPhone 7 on the Offer Up app. Her brother and mother went with her.

They pulled behind Medieval Times and waited for the buyers to arrive. An Infiniti pulled next to the Teran family's car. Both Vivian Teran and Hunter got out of the passenger seats.

"He asked for the phone, and I asked for the money," Vivian Teran testified.